D-Cerno
Architect and Engineering Specification
D-Cerno
Architect and Engineering Specification
Table of Contents
Table of Contents ......................................................................................................................... 2
Section 1 – General Information ................................................................................................... 3
1.
D-Cerno System Information .......................................................................................... 4
Section 2 – System Components ................................................................................................... 5
2.
Control Equipment ........................................................................................................ 6
2.1.
2.2.
Central unit CU .............................................................................................................. 6
Central unit with recording and webserver CUR.............................................................. 7
3.
Contribution Equipment ................................................................................................ 8
3.1.
3.2.
Delegate unit ................................................................................................................. 8
Chairman unit................................................................................................................ 8
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D-Cerno
Architect and Engineering Specification
Section 1 – General Information
Televic Conference Systems
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D-Cerno
1.
Architect and Engineering Specification
We hope that next time you’re in a meeting you’ll
realize that your eyes – just like your ears - deserve
a treat, and that your speech deserves digital!
D-Cerno System
Information
D-Cerno is not just a name …
The D-Cerno product range is a conference
discussion system that sets itself apart from similar
products in the market.
The name has two meanings:
1.
From the English word
Discern : To distinguish, differentiate
2.
Cerno : Latin for ‘Making a decision’
A product with a story ...
In line with Televic’s innovation strategy, D-Cerno is
the innovator within its market segment.
[D-] : Commonly recognized in today’s world as
abbreviation of something ‘Digital’.
On the sketch board it became clear from the first
draw of the pen that D-Cerno wasn't going to be like
any of its peers on the market.
Putting the pieces together, you get a summary of
what Televics D-Cerno stands for!
D-Cerno even turned out to be a little vain. Looking
around in the market it came to the conclusion that
it could bring style and design to a dull market place
crowded with unappealing products.
In the next section one can find a description of the
D-Cerno system. This text is the ideal base to plan
your project or to prepare a tender specification text.
Once D-Cerno was pleased with its looks, it was still
not satisfied as it realized that looks isn’t everything.
So it also wanted to stand out from the crowd with
its internal beauty. And thus analog technology was
too outdated for D-Cerno: it didn’t want to go for
anything less than digital. It despised traditional
buttons that made clicking noises and collected
germs and dirt around them. It wanted to continue
to serve the people, even if a cable would accidently
break or disconnect. And finally it wanted to go to
sleep automatically when everyone had left the
meeting room, hence saving on power and showing
its concern for the environment.
In all its uniqueness, it turned out that D-Cerno was a
little shy as well. While it kept a low profile on the
meeting table, it wanted the company of its central
unit. But only if it could share the looks and internal
beauty that it cherishes so much.
And so the first digital, stylish, clean and eco-aware
product in its category was born.
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D-Cerno
Architect and Engineering Specification
Section 2 – System Components
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D-Cerno System
2.
Architect and Engineering Specification
The operation of the menu shall be done via touch
sensitive buttons avoiding mechanical moving parts
and thus increasing the lifespan of the units. The unit
shall be easy to clean or disinfect.
Control Equipment
2.1. Central unit CU
The number of microphones that can be open at the
same time shall be maximum 8.
The central control unit shall configure and control
the delegate and chairman units using digital signal
processing technology.
The system shall have several microphone modes to
moderate the meeting:
The central control unit shall have an onboard digital
feedback suppression circuit to prevent acoustic
feedback and Larsen.

Direct Access
Delegates can activate the microphone till the
maximum of open microphone is reached.
The central control unit is capable of handling 50
units.

Request
Delegates that push the microphone button
request the floor and will be added in a queue.
Their microphone will be activated in order of
request by the chairman with the use of its
next-to-speak button.

Push to Talk
Delegates shall be able to speak as long as they
hold their finger on the microphone button.

FIFO
In this mode the delegates shall override each
other by activating their microphone. Only one
microphone can be active at any given time.

VOX
The microphone of the delegates will be
activated based on the fact that they start to
talk. Once they stop talking the microphone
will automatically be switched off.
Control for more units shall be possible by
connecting several central control units in a master
slave connection. A total of three central units can be
interconnected to make a system of 150 units.
The unit has 4 digital bus connections that can be
configured in a branch or loop configuration. Each
output can drive up to 20 delegate units.
The connection towards the contribution units shall
be over Cat5 cabling using RJ45 connectors.
The loop configuration guarantees a fail-safe system
if a cable or unit might be defective, in this situation
all units in the system will stay operational.
The system shall be an out of the box solution, so no
initialization shall be required once the system is
powered on.
The visual appearance of the central control unit
shall match the design of the delegate units.
Monitoring of the ongoing meeting can be
performed via the headphone connector.
The control unit operates as a standalone system
without the need of a central operator.
It will have no fan and thus be absolutely silent. It
will hence not distract the meeting if the central
unit(s) is/are placed on the conference table.
The large LCD display on the unit will allow easy
access to all the necessary controls and
configurations of the system.
The system shall have an ECO function going into low
power mode after the system has not been for a
certain period.
The menu shall be intuitive and will give direct
feedback towards the user regardless of the position
within the menu.
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D-Cerno System
Architect and Engineering Specification
It shall be possible to connect the system to other
A/V equipment:

External PA (room audio system)

External wireless/wired microphones

Tape recorder or other recording devices

Audio equipment (e.g. background music)

Video / audio conferencing equipment

External equalizer / Mixing board
2.2. Central unit with
recording and
webserver CUR
Identical to Central unit CU but with the addition of
the following features:
There will be an integrated recording function that
provides audio recording in .wav or .mp3 format. The
recordings will be stored on a mass storage device
via the USB connections at the front of the unit.
Following connections shall be available to couple
these systems:

1 Balanced XLR input

1 Unbalanced RCA input

2 Unbalanced RCA outputs
There will be an indication whenever the storage
becomes critical. If a second USB memory device is
inserted in the additional USB slot, automatically the
recording will be started on the second USB device.
The control of the recording function shall be
possible on the unit itself via direct controls or via
the integrated web server.
Next to these external connections the system has
the following specific connections:

4 Bus connections (4 branches or 2 loops)

Master / Slave bus connection

Lockable power connection
The central unit shall have the following controls and
indicators:

Mains on / off switch

Power on indication

System Volume control

4 menu buttons and LCD display
Televic Conference Systems
The unit shall have an integrated web server for
control and configuration. The connection between
the central unit and a PC will be established via a LAN
connection.
No software will need to be installed on a PC to
connect to the central unit. Via a standard web
browser it will be possible to access the web server
within the central unit.
Additional connections:

LAN connector

2 USB connections/slots
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D-Cerno System
3.
Architect and Engineering Specification
The unit shall have the following connections,
controls and indicators:
Contribution
Equipment
3.1. Delegate unit
The delegate unit enables delegates to speak and
listen to the meeting via a headphone.
The unit shall have digital signal processing to be able
to provide crystal clear sound reproduction and
excellent intelligibility.
The gooseneck microphone shall be fixed with a
length of 30 cm. The red indication ring on the
microphone will illuminate whenever the
microphone becomes active. If the unit is in request
mode the indication ring will blink.
The microphone shall be immune for mobile phone
interferences.

Microphone with led ring indicator

Microphone on/off button

Microphone on led bar indicator

Request led bar indicator

Volume control buttons

3.5 mm headphone socket

2 concealed RJ45 connections
3.2. Chairman unit
The chairman shall have the possibility to participate
and guide the conference or meeting. The unit shall
have the same design and functions as the delegate
unit and also have two additional buttons:

PRIOR button
Short press : Deactivate all active microphones
Press and hold : Temporary mute all active
microphones and auxiliary input.
There shall be a possibility to activate a chime
when the prior button is pressed.

Next-in-line button
Grant the floor to the next microphone in the
queue. Only available in certain microphone
modes.
To prevent acoustic feedback the loudspeaker shall
be muted when the microphone is active.
To listen to the proceedings the unit will have a 3,5
mm stereo headphone socket. Volume can be
adjusted via a control on top of the unit.
The unit is controlled via touch sensitive buttons that
are flush with no gaps in the housing.
The chairman unit will have the following
connections, controls and indicators:
The unit shall be easy to clean and disinfect. There
will be no gaps around the buttons where dirt and
bacteria can accumulate.
The unit shall have two interchangeable RJ45
connectors to connect to the central unit or the next
delegate unit. These connections will be hidden in
the bottom housing of the unit.
The connections will have no specific in and out port,
as the units will detect the flow of the signal
automatically.
Televic Conference Systems

Microphone with led ring indicator

Microphone on/off button

PRIOR button

Next-in-line button

Microphone on led bar indicator

Request led bar indicator

Volume control buttons

3.5 mm headphone socket

2 concealed RJ45 connections
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